Found these at work and was wondering if I could use them in my Sump?
The other Q could be... "How can you tell if a Sponge is Aquaria safe"?
The ones im thinking of using for Mecha. Filtr. are actually about 1/2" thick and square.
The circles I was thinking of adding to the devider right before the Pump.
Thanks


The other Q could be... "How can you tell if a Sponge is Aquaria safe"?
The ones im thinking of using for Mecha. Filtr. are actually about 1/2" thick and square.
The circles I was thinking of adding to the devider right before the Pump.
Thanks


